@article{kcenterclusteringunderperturbation,
  title = {$k$-center Clustering under Perturbation Resilience},
  author = {Maria-Florina Balcan and Nika Haghtalab and Colin White},
  year = {2015},
  eprint = {1505.03924},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1505.03924v4},
}